US7083159B2 - Precision flow-control device using multiple shutters - Google Patents

Precision flow-control device using multiple shutters Download PDF

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Publication number
US7083159B2
US7083159B2 US10/742,124 US74212403A US7083159B2 US 7083159 B2 US7083159 B2 US 7083159B2 US 74212403 A US74212403 A US 74212403A US 7083159 B2 US7083159 B2 US 7083159B2
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US
United States
Prior art keywords
organs
shutter
transmission
actuator
motion
Prior art date
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Expired - Fee Related, expires
Application number
US10/742,124
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English (en)
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US20040129911A1 (en
Inventor
Christophe Promper
Thomas Badinand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Aero Boosters SA
Original Assignee
Techspace Aero SA
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Filing date
Publication date
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Assigned to TECHSPACE AERO S.A. reassignment TECHSPACE AERO S.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BADINAND, THOMAS, PROMPER, CHRISTOPHE
Publication of US20040129911A1 publication Critical patent/US20040129911A1/en
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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
    • G03B9/12—Two relatively-adjustable aperture-defining members moving as a unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/029—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with two or more gates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
    • F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
    • F16K3/08—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres
    • F16K3/085—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres the axis of supply passage and the axis of discharge passage being coaxial and parallel to the axis of rotation of the plates

Definitions

  • the present invention relates to a class of devices such as control valves, intended for the proportional control of flow.
  • flow relates both to a material fluid, as for instance in the case of a valve controlling a liquid or gaseous flow, and to an electromagnetic radiation, as for instance in the case of a shutter or diaphragm for visible light.
  • Examples of application areas are thus the area of precision control valves in aeronautics, optics or the multimedia (cinema, photography, etc.).
  • Proportional control valves having a motor or an actuator running a single shutter of the plug, butterfly or grid type, etc. are known.
  • the present invention aims to provide a solution allowing to avoid the drawbacks of the state of the art.
  • the invention aims to provide a very-high-precision flow-control device at a reasonable cost and in particular not requiring the production of very-high-precision parts.
  • the present invention relates to a shutter device for the precision control of a flow, comprising at least one organ for shutting one section for the passage of the flow, the motion of which is proportional to that of an actuator controlling it, wherein said device comprises at least two shutter organs controlled by the actuator by means of a transmission allowing to obtain slightly different proportionality coefficients for the motion of said organs.
  • said shutter organs both have a rotary motion controlled by a motor shaft that is actuated by hand, electrically or otherwise, by means of a transmission allowing to transmit to them the motion of said shaft with slightly different transmission ratios, preferably reduction ratios.
  • said rotary shutter organs are in the form of plugs, butterflies or grids that may move independently of each other.
  • said transmission is a transmission by gear, by roller or by chain.
  • the device of the invention comprises a grid shutter where said shutter organs have a passage section or aperture in the form of a crown section with the same axis, internal and external radii, the aperture being limited to an angle ⁇ less than or equal to 2 ⁇ , preferably less than or equal to ⁇ .
  • said shutter organs both have a linear motion and are preferably curtain shutters.
  • the motor shaft may be provided with two interdependent pinions, in the case of two rotary or linear shutters.
  • the motor shaft may also be provided with a double rack, in the case of two rotary shutters activated by a linear motion.
  • Another aspect of the invention is the use of a shutter device such as described above in a high-precision control valve, for instance in the aeronautical and space sectors.
  • Yet another aspect of the invention is the use of a shutter device such as described above as a precision shutter for electromagnetic radiation, preferably for visible light, such as the diaphragm of a projector or of a radiation sensor.
  • FIG. 1 shows an example of a simple shutter with a passage section in the form of a partial crown, with one or several perforations, according to the state of the art.
  • FIG. 2 shows a shutter with two organs, each one presenting a passage section in the form of a partial crown according to the present invention.
  • FIG. 3 diagrammatically shows the shutter with two organs of FIG. 2 where said organs are actuated by gear transmission.
  • the device proposed by the present invention comprises:
  • the operating principles may be detailed by the following example which relates, as mentioned above, to rotary shutters with a passage section in the form of a partial crown with a given angle ⁇ .
  • the device in the present invention may take the form of various preferred embodiments depending for instance on whether the motion of the shutter is rotary or linear.
  • the differential motion may be achieved by classical, mechanical drive means such as for instance:
  • FIG. 3 is a diagrammatic illustration of a rotary shutter in a valve 5 where the differential motion of the two elements O 1 , O 2 forming it is achieved by means of a gear transmission 4 between the motor (actuator) 6 and the shutter 1 .
  • the device according to the invention has the advantage of offering a very-high precision of the control system in an open loop without requiring great precision in the individual parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Mechanically-Actuated Valves (AREA)
US10/742,124 2002-12-20 2003-12-19 Precision flow-control device using multiple shutters Expired - Fee Related US7083159B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02447266A EP1431634B1 (fr) 2002-12-20 2002-12-20 Dispositif de contrôle de flux de précision par des obturateurs multiples
EP02447266.4 2002-12-20

Publications (2)

Publication Number Publication Date
US20040129911A1 US20040129911A1 (en) 2004-07-08
US7083159B2 true US7083159B2 (en) 2006-08-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US10/742,124 Expired - Fee Related US7083159B2 (en) 2002-12-20 2003-12-19 Precision flow-control device using multiple shutters

Country Status (3)

Country Link
US (1) US7083159B2 (fr)
EP (1) EP1431634B1 (fr)
DE (1) DE60209695T2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060098726A1 (en) * 2004-11-05 2006-05-11 Interdigital Technology Corporation Pilot-directed and pilot/data-directed equalizers

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0424870D0 (en) * 2004-11-10 2004-12-15 Huntleigh Technology Plc Rotary valve
DE102006059029B4 (de) * 2006-12-14 2011-05-05 Audi Ag Drehschieber
US20140042251A1 (en) * 2012-08-09 2014-02-13 Peter A. Maksymec Lawn sprinkler flow control device
DE202013010447U1 (de) * 2013-11-21 2015-02-24 Zwt Wasser- Und Abwassertechnik Gmbh Vorrichtung zur Behandlung von Aowasser vom Regulierungseinheit einer Vorrichtung zur Behandlung von Abwasser
DE102014207675A1 (de) 2014-04-24 2015-10-29 Schaeffler Technologies AG & Co. KG Ventilanordnung
US20170207102A1 (en) * 2016-01-15 2017-07-20 Kabushiki Kaisha Toshiba Semiconductor manufacturing apparatus and semiconductor manufacturing method
FR3083287B1 (fr) * 2018-06-27 2022-04-15 Arianegroup Sas Vanne de regulation amelioree

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB883911A (en) 1958-10-30 1961-12-06 Optische Ind De Oude Delft Nv Improvements relating to photographic cameras
JPS6070427A (ja) 1983-09-28 1985-04-22 Asahi Optical Co Ltd ロ−タリ−シャッタ−におけるスリット調節機構
US5417083A (en) 1993-09-24 1995-05-23 American Standard Inc. In-line incremetally adjustable electronic expansion valve
US6491063B1 (en) * 1997-09-17 2002-12-10 Ben-Ro Industry And Development Ltd. Valve assembly and airconditioning system including same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB883911A (en) 1958-10-30 1961-12-06 Optische Ind De Oude Delft Nv Improvements relating to photographic cameras
JPS6070427A (ja) 1983-09-28 1985-04-22 Asahi Optical Co Ltd ロ−タリ−シャッタ−におけるスリット調節機構
US5417083A (en) 1993-09-24 1995-05-23 American Standard Inc. In-line incremetally adjustable electronic expansion valve
US6491063B1 (en) * 1997-09-17 2002-12-10 Ben-Ro Industry And Development Ltd. Valve assembly and airconditioning system including same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060098726A1 (en) * 2004-11-05 2006-05-11 Interdigital Technology Corporation Pilot-directed and pilot/data-directed equalizers
US20090180528A1 (en) * 2004-11-05 2009-07-16 Interdigital Technology Corporation Pilot-directed and pilot/data-directed equalizers

Also Published As

Publication number Publication date
EP1431634B1 (fr) 2006-03-08
US20040129911A1 (en) 2004-07-08
DE60209695T2 (de) 2006-11-09
EP1431634A1 (fr) 2004-06-23
DE60209695D1 (de) 2006-05-04

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Effective date: 20180801